Film peeling device and method of peeling film

ABSTRACT

A film peeling device includes a chamber, a lower stage disposed on a first wall of the chamber, first to fourth grippers capable of peeling first to fourth sides of a film by gripping the first to fourth sides of the film attached to an object disposed on the lower stage and an upper stage disposed on a second wall of the chamber facing the first wall of the chamber and capable of extending in a first direction in which the object is disposed.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This is a divisional application of U.S. patent application Ser. No.17/360,628 filed Jun. 28, 2021 (now pending), the disclosure of which isincorporated herein by reference in its entirety. U.S. patentapplication Ser. No. 17/360,628 claims priority to and the benefit ofKorean Patent Application No. 10-2020-0146610, filed in the KoreanIntellectual Property Office (KIPO) on Nov. 5, 2020, the entire contentsof which is incorporated herein by reference.

BACKGROUND 1. Technical Field

Embodiments of the disclosure relate generally to a film peeling deviceand a method of peeling film, and more specifically, to a film peelingdevice capable of simultaneously peeling four sides of a film and amethod of peeling film using the film peeling device.

2. Description of the Related Art

During a manufacturing process of a display device, the display devicemay be transported with a protective film attached to the display devicein order to protect each component. At this time, the protective filmmust be removed in order to bond the each component together. Whenremoving the protective film, the components should not be damagedwithout the surrounding foreign matters coming into contact with them.

Recently, the display device has been produced to have a shape curved atan edge of the corner. Through this, the display device may display animage even at the corner. The display device may have a quadrangularshape, and all four surfaces of the quadrangular shape may have a curvedshape. Accordingly, each of the components (e.g., a window, a displaypanel, etc.) of the display device may also have a curved shape on allfour sides.

In this case, the protective film attached to each components must bepeeled at a time to precisely peel the protective film. Therefore,research is being conducted to simultaneously peel the four surfaces ofthe protective film.

SUMMARY

Embodiments provide a film peeling device capable of simultaneouslypeeling four sides of a film.

Embodiments provide a method of peeling film using a film peeling devicecapable of simultaneously peeling four sides of a film.

Additional features of the inventive concepts will be set forth in thedescription which follows, and in part will be apparent from thedescription, or may be learned by practice of the inventive concepts.

In an embodiment of a film peeling device may include a chamber, a lowerstage disposed on a first wall of the chamber, first to fourth gripperscapable of peeling first to fourth sides of a film by gripping the firstto fourth sides of the film attached to an object disposed on the lowerstage and an upper stage disposed on a second wall of the chamber facingthe first wall of the chamber and capable of extending in a firstdirection in which the object is disposed.

In an embodiment, the first to fourth grippers may be disposed on thefirst wall of the chamber.

In an embodiment, the first to fourth grippers may be respectivelydisposed on first to fourth sidewalls perpendicular to the first wall ofthe chamber.

In an embodiment, the upper stage may include a support part disposed onthe second wall of the chamber, an extension part at least partiallydisposed inside the support part, and movable in the first direction andan adsorption part disposed at an end of the extension part in the firstdirection and capable of adsorbing the object.

In an embodiment, the film peeling device may further include atransport part disposed between the second wall of the chamber and theupper stage. The transport part may transport the upper stage in asecond direction perpendicular to the first direction.

In an embodiment, an alignment mark may be displayed on a surface of thelower stage contacting the object.

In an embodiment, the film peeling device may further include aplurality of connection elements disposed between the first wall of thechamber and the lower stage, and extending in a second directionopposite to the first direction so that the upper stage adsorbs theobject.

In an embodiment, each of the plurality of connection elements mayinclude a support part disposed on the first wall of the chamber and anextension part at least partially disposed inside the support part andmovable in the second direction.

In an embodiment, the first to fourth grippers may be movable in thefirst direction.

In an embodiment, the first to fourth grippers may be movable in adirection between the first direction and a direction perpendicular tothe first direction.

In an embodiment of a method of peeling film may include arranging anobject on a lower stage disposed on a first wall of a chamber positionedin a first direction of the chamber, gripping first to fourth sides of afilm attached to the object by using first to fourth grippers disposedinside the chamber and peeling the first to fourth sides of the filmattached to the object by moving the first to fourth grippers.

In an embodiment, an upper stage may be disposed on a second wall of thechamber facing the first wall of the chamber. The upper stage mayinclude a support part disposed on the second wall of the chamber, anextension part at least partially disposed inside the support part, andmovable in the first direction and an adsorption part disposed at an endof the extension part in the first direction and capable of adsorbingthe object.

In an embodiment, the method may further include, after the peeling ofthe first to fourth sides of the object, adsorbing the object by movingthe extension part of the upper stage in the first direction andseparating the object from the film by moving the extension part in asecond direction opposite to the first direction.

In an embodiment, the separating of the object may include tilting theupper stage to separate only a portion of the film from the object.

In an embodiment, the method may further include, after the separatingof the object, transporting the upper stage and the object together witha transport part disposed between the second wall of the chamber and theupper stage.

In an embodiment, the peeling of the first to fourth sides of the filmmay include moving the first to fourth grippers in the first directionto peel the film attached to the object.

In an embodiment, the peeling of the first to fourth sides of the filmmay include moving the first to fourth grippers in a direction betweenthe first direction and in a direction perpendicular to the firstdirection to peel the film attached to the object.

In an embodiment, a plurality of connection elements may be disposedbetween the first wall of the chamber and the lower stage. Each of theplurality of connection elements may include a support part disposed onthe first wall of the chamber and an extension part at least partiallydisposed inside the support part, and movable in a second directionopposite to the first direction.

In an embodiment, the method may further include, after peeling thefirst to fourth sides of the object, adsorbing the object by the upperstage by moving the extension part in the second direction andseparating the film from the object by moving the extension part in thefirst direction.

In an embodiment, the separating of the object may include tilting theupper stage to separate only a portion of the film from the object.

Accordingly, the film peeling device may peel the first to fourth sidesof the film attached to the object.

For example, the first pixel electrode may be connected to the drainelectrode without forming a contact hole. Accordingly, it is possible toprevent a decrease in the flatness of the via insulating layer thatoccurs when the contact hole is formed. Accordingly, the luminousefficiency of the flexible display device may be improved.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features and advantages of the disclosure willbecome more apparent by describing in detailed example embodimentsthereof with reference to the accompanying drawings.

FIGS. 1 and 2 are schematic views illustrating a display deviceaccording to an embodiment.

FIG. 3 is a schematic view illustrating a lower stage and a filmaccording to an embodiment.

FIG. 4 is a schematic view illustrating an embodiment of an uppersurface of the lower stage of FIG. 3 .

FIGS. 5 to 10 are schematic views illustrating a method of peeling filmaccording to an embodiment.

FIGS. 11 and 12 are schematic views illustrating a method of peelingfilm according to an embodiment.

FIGS. 13 to 16 are schematic views illustrating a method of peeling filmaccording to an embodiment.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Hereinafter, the disclosure will be explained in detail with referenceto the accompanying drawings.

FIGS. 1 and 2 are schematic views illustrating a display deviceaccording to an embodiment.

Referring to FIGS. 1 and 2 , a display device DD may include a flatportion PA and a side portion CA. The display device DD may bemanufactured in various forms. For example, the display device DD may bemanufactured in a form in which the side portion CA is perpendicular tothe flat portion PA. The side portion CA may be manufactured to have acurvature and protrude outward of the display device DD.

The flat portion PA may be located on an upper surface of the displaydevice DD and a rear surface of the display device DD. Pixels may bedisposed in the flat portion PA. The display device DD may display animage through the flat portion PA.

The side portion CA may be extended to the flat portion PA. The sideportion CA may be disposed along an edge of the display device DDbetween the upper surface of the display device DD and the rear surfaceof the display device DD. In embodiments, the side portion CA mayinclude first to fourth sides, and an image may be displayed on thefirst to fourth sides as well. To this end, pixels may also be disposedin the side portion CA.

The side portion CA may connect the upper surface of the display deviceDD and the rear surface of the display device DD. In embodiments, theside portion CA may have various forms. For example, an area of theupper surface of the display device DD may be smaller than that of therear surface of the display device DD. The side portion CA may have apredetermined inclination and connect the upper surface of the displaydevice DD to the rear surface of the display device DD. The side portionCA may have a curvature and connect the upper surface of the displaydevice DD and the rear surface of the display device DD.

As another example, for example, an area of the upper surface of thedisplay device DD and an area of the rear surface of the display deviceDD may be the same as an area of the rear surface of the display deviceDD and overlap each other. The side portion CA may be disposedperpendicular to the upper surface of the display device DD and the rearsurface of the display device DD and may connect the upper surface ofthe display device DD with the rear surface of the display device DD. Asanother example, the side portion CA may connect the upper surface ofthe display device DD and the rear surface of the display device DDwhile a center of the side portion CA protrudes outside of the displaydevice DD.

The display device DD may include various components therein. At leastsome of the components and the display device DD may have a same shape.For example, a window, a display panel, and the like and the displaydevice DD may have a same shape. Accordingly, the window, the displaypanel, and the like may also include a flat portion and a side portionsimilar to the display device DD. A film (e.g., a protective film) maybe attached to the window, the display panel, and the like. The film mayprotect the window, the display panel, and the like from externalimpacts in a process of manufacturing the display device DD. Forexample, the film may protect the window, the display panel, and thelike from external scratches in a process of transporting the window andthe display panel.

However, the film must be removed in a process of combining the window,the display panel, or the like. Accordingly, a film peeling device (orfilm stripping device) for removing the film from the window, thedisplay panel, or the like and a method of peeling a film by using thefilm peeling device will be described.

FIG. 3 is a schematic view illustrating a lower stage and a filmaccording to an embodiment, FIG. 4 is a schematic view illustrating anembodiment of an upper surface of the lower stage of FIG. 3 , and FIGS.5 to 10 are schematic view illustrating a method of peeling a filmaccording to an embodiment.

Referring to FIGS. 3 to 10 , the film peeling device may include a lowerstage LS, an upper stage US, a transport part, and grippers GP. Theupper stage US may include a support part SP1, an extension part EP1,and an adsorption part AP. The transport part may include a roller ROand a transport belt BE.

The lower stage LS may be disposed inside a chamber. For example, thelower stage LS may be disposed on a first wall positioned in a firstdirection DR1 of the chamber. An object DP to be removed to which a filmPF is attached may be disposed on the lower stage LS. The object DP tobe removed may include the above-described window, display panel, or thelike. The film PF may refer to a protective film for protecting thewindow, the display panel, and the like from external impacts while theyare transported.

On the lower stage LS, as illustrated in FIG. 4 , an alignment mark AMmay be displayed so that the object DP to be removed may be accuratelypositioned on the lower stage LS. Although it is illustrated that fivealignment marks AM are displayed in FIG. 4 , this is merely an example,and the alignment marks AM may be displayed in various ways as long asthey assist in accurately positioning the object DP to be removed on thelower stage MS. For example, the alignment marks AM may be displayedonly at corners of the upper surface of the lower stage LS. For example,four alignment marks AM may be displayed on the lower stage LS. Asanother example, the alignment marks AM may be displayed on each end ofthe upper surface of the lower stage LS. For example, two alignmentmarks AM may be displayed on the lower stage LS. The film peeling devicemay use a vision camera (not illustrated) to check whether the object DPto be removed is precisely positioned to correspond to the alignmentmarks AM. The film stripping device may adjust the position of theobject DP to be removed in case that the object DP to be removed is notpositioned to correspond to the alignment marks AM. After it isconfirmed that the object DP to be removed corresponds to the alignmentmarks AM, the film peeling device may perform a film peeling process.

As illustrated in FIG. 3 , first to fourth sides of the film PF may bepeeled at the same time. For example, the first to fourth sides of thefilm PF may be simultaneously peeled from first to fourth sides of theobject DP to be removed. An area where the first to fourth sides of thefilm PF contact each other may be cut to facilitate the peeling.Accordingly, the film peeling device may simultaneously peel the firstto fourth sides of the film PF.

In embodiments, the grippers GP may grip a portion of the film PF. Forexample, the grippers GP may grip a protrusion of the film PF thatprotrudes outward of the object DP to be removed. Thereafter, a filmpeeling process may be performed by the grippers GP pulling a portion ofthe film PF.

In embodiments, the grippers GP may be disposed inside the chamber. Forexample, the grippers GP may be disposed on the first wall of thechamber. Alternatively, for example, the grippers GP may be disposed onfirst to fourth sidewalls perpendicular to the first wall of thechamber, respectively. The grippers GP may be disposed at variouslocations inside the chamber. For example, the grippers GP may bedisposed on the lower stage LS or on a second wall opposite the firstwall.

In embodiments, four grippers GP may be provided. Each of the fourgrippers GP may be disposed on the first to fourth sidewalls of thechamber. Each of the four grippers GP may grip the first to fourth sidesof the film PF. The four grippers GP may simultaneously peel the film PFfrom the first to fourth sides of the object DP to be removed. In casethat the four grippers GP separate the film PF from the first to fourthsides of the object DP to be removed at the same time, the film peelingdevice may not cause damage to the object to be removed DP. Therefore,the film PF may be readily removed.

In embodiments, the grippers GP may move in a direction between thefirst direction DR1 and a direction perpendicular to the first directionDR1, and away from the object DP to be removed to peel the film PF. Forexample, the grippers GP may perform a film peeling process whilepulling the film PF in a diagonal direction. While a friction betweenthe film PF and the first to fourth sides of the object DP to be removedmay be reduced or minimized, the film PF may be peeled from the objectDP to be removed. Therefore, it is possible to minimize the powerrequired to peel the film PF from the first to fourth sides of theobject DP to be removed.

As another example, in embodiments, the grippers GP may move in thefirst direction DR1 to peel the film PF. For example, the grippers GPmay perform a film peeling process while pulling the film PF in avertical direction.

As illustrated in FIGS. 5 to 7 , the grippers GP may grip a protrusionprotruding outside of the film PF to peel the film PF from the object DPto be removed. The grippers GP may separate the film PF from the firstto fourth sides of the object DP to be removed.

As illustrated in FIGS. 7 and 8 , the upper stage US disposed on asecond wall facing the first wall may adsorb the object DP to beremoved. The upper stage US may extend in the first direction DR1 inwhich the lower stage LS is disposed.

In embodiments, the extension part EP1 may be disposed inside thesupport part SP1. To this end, the support part SP1 may have an emptyspace therein. In the empty space, the extension part EP1 may move in adirection opposite to the first direction DR1 and the first directionDR1. Through this, the upper stage US may extend in the first directionDR1. For example, in the upper stage US, the extension part EP1 may movein the first direction DR1 to adsorb the object DP to be removed. Afterthe upper stage US adsorbs the object DP to be removed, the extensionpart EP1 may move in a direction opposite to the first direction DR1 toseparate the object DP to be removed and the film PF. The adsorptionpart AP may adsorb the object DP to be removed. In embodiments, theadsorption part AP may adsorb the object DP to be removed by includingan adsorbing material, or may adsorb the object DP to be removed by avacuum adsorption method.

As illustrated in FIGS. 8 and 9 , in embodiments, the upper stage US mayadsorb the object DP to be removed through the adsorption part AP andmay be tilted to separate a portion of the object DP to be removed fromthe film PF. For example, the upper stage US may be tilted by rotatingthe extension part EP1 at a predetermined angle with respect to acentral axis.

In the upper stage US, only the extension part EP1 may tilt in adirection while the support part SP1 is fixed. Accordingly, the adhesionarea between the object DP to be removed and the film PF may be reduced.

Thereafter, the upper stage US may separate the object DP to be removedfrom the film PF in the process of being transported in the seconddirection DR2 perpendicular to the first direction DR1 by the transportpart.

FIGS. 8 and 9 illustrate that the object DP to be removed and the filmPF are partially separated from each other in a direction opposite tothe second direction DR2. However, this is merely an example, and thedisclosure is not limited thereto. For example, the object DP to beremoved and the film PF may be partially separated from each other inthe second direction DR2.

The transport part may be disposed between the chamber and the upperstage US. As illustrated in FIG. 10 , after the upper stage US separatesa portion of the object DP to be removed from the film PF, the transportpart may transport the upper stage US and the object DP to be removedtogether in a direction perpendicular to the first direction DR1.

The film peeling device may include the chamber, the lower stage LSdisposed on the first wall of the chamber, first to fourth grippers GPcapable of simultaneously peeling the first to fourth sides of the filmPF by gripping the first to fourth sides of the film PF attached to theobject to be removed DP disposed on the lower stage LS, and the upperstage US disposed on the second wall facing the first wall of thechamber and capable of extending in the first direction DR1 in which theobject DP to be removed is disposed. The film stripping device maysimultaneously strip the first to fourth sides of the film PF attachedto the object DP to be stripped.

FIGS. 11 and 12 are schematic views each illustrating a method ofpeeling film according to an embodiment. FIGS. 11 and 12 may besubstantially identical to those described above with reference to FIGS.5 to 7 except that the grippers GP vertically move in the firstdirection DR1. Accordingly, descriptions of the repetitive configurationwill be omitted.

Referring to FIGS. 11 and 12 , the film peeling device may include alower stage LS, an upper stage US, a transport part, and grippers GP.The upper stage US may include a support part SP1, an extension partEP1, and an adsorption part AP. The transport part may include a rollerRO and a transport belt BE.

In embodiments, the grippers GP may grip a portion of the film PF. Forexample, the grippers GP may grip a protrusion of the film PF thatprotrudes outward of the object DP to be removed. Thereafter, a filmpeeling process may be performed by the grippers GP pulling the portionof the film PF.

In embodiments, the grippers GP may be disposed inside the chamber. Forexample, the grippers GP may be disposed on the first wall of thechamber. As another example, the grippers GP may be disposed on first tofourth sidewalls perpendicular to the first wall of the chamber,respectively. The grippers GP may be disposed at various locationsinside the chamber. For example, the grippers GP may be disposed on thelower stage LS or on a second wall opposite the first wall.

In embodiments, four grippers GP may be provided. Each of the fourgrippers GP may be disposed on the first to fourth sidewalls of thechamber. Each of the four grippers GP may grip the first to fourth sidesof the film PF. The four grippers GP may simultaneously peel the film PFfrom the first to fourth sides of the object DP to be removed. In casethat the four grippers GP separate the film PF from the first to fourthsides of the object DP to be removed at the same time, the film peelingdevice may not cause damage to the object DP to be removed. Thus, thefilm PF may be readily removed. Since the four grippers GPsimultaneously peel the film PF from the first to fourth sides of theobject DP to be removed, the film peeling device may reduce theoccurrence of foreign matter.

In embodiments, the grippers GP may move in the first direction DR1 topeel the film PF. For example, the grippers GP may perform a filmpeeling process while pulling the film PF in a vertical direction.

The film peeling device may peel the film PF from the first to fourthsides of the object to be removed DP while minimizing the movingdistance of the grippers GP.

The film peeling device may include the chamber, the lower stage LSdisposed on the first wall of the chamber, first to fourth grippers GPcapable of simultaneously peeling the first to fourth sides of the filmPF by gripping the first to fourth sides of the film PF attached to theobject to be removed DP disposed on the lower stage LS, and the upperstage US disposed on the second wall facing the first wall of thechamber and capable of extending in the first direction DR1 in which theobject DP to be removed is disposed. The film peeling device maysimultaneously peel the first to fourth sides of the film PF attached tothe object DP to be removed.

FIGS. 13 to 16 are schematic views illustrating a method of peeling afilm according to an embodiment.

Referring to FIGS. 13 to 16 , a film peeling device may include a lowerstage LS, an upper stage US, a transport part, grippers GP, and aconnection element. The connection element may include a support partSP2 and an extension part EP2. The upper stage US may include a supportpart SP1, an extension part EP1, and an adsorption part AP. Thetransport part may include a roller RO and a transport belt BE.

The lower stage LS may be disposed inside a chamber. For example, thelower stage LS may be disposed on a first wall positioned in a firstdirection DR1 of the chamber. An object DP to be removed to which thefilm PF is attached may be disposed on the lower stage LS. The object DPto be removed may include the above-described window, display panel, orthe like. The film PF may refer to a protective film for protecting thewindow, the display panel, and the like.

The grippers GP may grip a portion of the film PF. Thereafter, a filmpeeling process may be performed while the grippers GP pull the portionof the film PF.

In embodiments, the grippers GP may be disposed inside the chamber. Forexample, the grippers GP may be disposed on the first wall of thechamber. As another example, the grippers GP may be disposed on first tofourth sidewalls perpendicular to the first wall of the chamber,respectively. The grippers GP may be disposed at various locationsinside the chamber. For example, the grippers GP may be disposed on thelower stage LS or on a second wall opposite the first wall.

In embodiments, four grippers GP may be provided. Each of the fourgrippers GP may be disposed on the first to fourth sidewalls of thechamber. Each of the four grippers GP may grip the first to fourth sidesof the film PF. The four grippers GP may simultaneously peel the film PFfrom the first to fourth sides of the object DP to be removed. In casethat the four grippers GP separate the film PF from the first to fourthsides of the object DP to be removed at the same time, the film peelingdevice may not cause damage to the object DP to be removed. Thus, thefilm PF may be readily removed. In addition, since the four grippers GPsimultaneously peel the film PF from the first to fourth sides of theobject to be removed DP, the film peeling device may reduce theoccurrence of foreign matter.

In embodiments, the grippers GP may move in a direction between thefirst direction DR1 and a direction perpendicular to the first directionDR1, and away from the object DP to be removed to peel the film PF. Forexample, the grippers GP may perform a film peeling process whilepulling the film PF in a diagonal direction. While a friction betweenthe film PF and the first to fourth sides of the object DP to beremoved, the film PF may be peeled from the object DP to be removed.Through this, it is possible to minimize or reduce the power required topeel the film PF from the first to fourth sides of the object DP to beremoved.

As another example, in embodiments, the grippers GP may move in thefirst direction DR1 to peel the film PF. For example, the grippers GPmay perform a film peeling process while pulling the film PF in avertical direction.

As illustrated in FIGS. 13 and 14 , the grippers GP may peel the film PFfrom the first to fourth side surfaces of the object DP to be removed.Thereafter, as illustrated in FIGS. 14 and 15 , the connection elementmay move the lower stage LS in a direction opposite to the firstdirection DR1 so that the upper stage US adsorb the object DP to beremoved.

The connection element may be disposed between the lower stage LS andthe first wall of the chamber. The connection element may support thelower stage LS and may move the lower stage LS in the first directionDR1. In embodiments, in the connection element, the extension part EP2may be disposed inside the support part SP2. At least a portion of theextension part EP2 may be exposed to the outside of the support partSP2. The extension part EP2 may move in the first direction DR1 withinthe support part SP2. Through this, the connection element may move thelower stage LS in the first direction DR1.

The connection element may move the lower stage LS again in the firstdirection DR1 after the upper stage US adsorbs the object DP to beremoved. Through this, the film peeling device may separate the film PFand the object DP to be removed.

As illustrated in FIG. 9 , the upper stage US may adsorb the object DPto be removed DP by the adsorption part AP and may be tilted to separatea portion of the object DP to be removed from the film PF. In the upperstage US, only the extension part EP1 may tilt in a direction while thesupport part SP1 is fixed. Thereafter, the upper stage US may separate,from the film PF, another portion of the object DP to be removed in adirection opposite to the portion of the object DP to be removed in theprocess of being transported in a direction. Accordingly, the adhesionarea between the object DP to be removed and the film PF may be reduced.

The foregoing is illustrative of the disclosure and is not to beconstrued as limiting thereof. Although a few example embodiments of thedisclosure have been described, those skilled in the art will readilyappreciate that many modifications are possible in the exampleembodiments without materially departing from the novel teachings andadvantages of the disclosure. Accordingly, all such modifications areintended to be included within the scope of the disclosure as defined inthe claims. In the claims, means-plus-function clauses are intended tocover the structures described herein as performing the recited functionand not only structural equivalents but also equivalent structures.Therefore, it is to be understood that the foregoing is illustrative ofthe disclosure and is not to be construed as limited to the specificexample embodiments disclosed, and that modifications to the disclosedexample embodiments, as well as other example embodiments, are intendedto be included within the scope of the appended claims. The disclosureis defined by the following claims, with equivalents of the claims to beincluded therein.

What is claimed is:
 1. A film peeling device comprising: a chamber; alower stage disposed on a first wall of the chamber; first to fourthgrippers capable of peeling first to fourth sides of a film by grippingthe first to fourth sides of the film attached to an object disposed onthe lower stage; and an upper stage disposed on a second wall of thechamber facing the first wall of the chamber and capable of extending ina first direction in which the object is disposed.
 2. The film peelingdevice of claim 1, wherein the first to fourth grippers are disposed onthe first wall of the chamber.
 3. The film peeling device of claim 1,wherein the first to fourth grippers are respectively disposed on firstto fourth sidewalls perpendicular to the first wall of the chamber. 4.The film peeling device of claim 1, wherein the upper stage includes: asupport part disposed on the second wall of the chamber; an extensionpart at least partially disposed inside the support part and movable inthe first direction; and an adsorption part disposed at an end of theextension part in the first direction and capable of adsorbing theobject.
 5. The film peeling device of claim 1, further comprising: atransport part disposed between the second wall of the chamber and theupper stage, wherein the transport part transports the upper stage in asecond direction perpendicular to the first direction.
 6. The filmpeeling device of claim 1, wherein an alignment mark is displayed on asurface of the lower stage contacting the object.
 7. The film peelingdevice of claim 1, further comprising: a plurality of connectionelements disposed between the first wall of the chamber and the lowerstage, and extending in a second direction opposite to the firstdirection so that the upper stage adsorbs the object.
 8. The filmpeeling device of claim 7, wherein each of the plurality of connectionelements includes: a support part disposed on the first wall of thechamber; and an extension part at least partially disposed inside thesupport part and movable in the second direction.
 9. The film peelingdevice of claim 1, wherein the first to fourth grippers are movable inthe first direction.
 10. The film peeling device of claim 1, wherein thefirst to fourth grippers are movable in a direction between the firstdirection and a direction perpendicular to the first direction.